When I made cheddar cheese soup a couple of months ago, I had a hard time choosing between two recipes. I went with the classic "best ever" cheese soup recipe from Cook's Illustrated rather than the super simple variation from Everyday With Rachael Ray. To treat myself for Valentine's Day I decided to give the other recipe a try. Good thing I did because I prefer this velvety version! Flavored with leeks instead of celery and beer instead of sherry, this soup has a wonderful cheesy taste. Mustard adds depth and its slight tang offsets the beer. For garnish I made heart-shaped croutons! To see how I made this soup, read more